-
Posts
891 -
Joined
-
Last visited
-
Days Won
33
Content Type
Profiles
Forums
Events
Gallery
Classifieds
Everything posted by axorlov
-
Part 90 vs 95E (and 95A pre-2017) in one sentence: Technical specs are identical (stability, deviation, etc); Part 90 UHF equipment covers roughly from 400MHz to 500MHz; Part 95E (A) covers few channels in 462MHz and 467MHz. Some older Part 90 equipment are also Part 95A, like Kenwoods I listed above.
-
Motorola DTR and DLR series 900MHz FHSS digital radios
axorlov replied to n1das's topic in 900 MHz License-Free Radios (ISM)
I'll report here when I get these DLRs on hand. -
Motorola DTR and DLR series 900MHz FHSS digital radios
axorlov replied to n1das's topic in 900 MHz License-Free Radios (ISM)
David, thank you very much for the very comprehensive deep dive into DTR-DLR world. I will wait for my newly bought DLRs to come before asking more questions. -
If only for GMRS, I'd go with one of the second-hand commercial mobiles, like Kenwood TK-860, TK-880, TK-8180 or similar (like 8102), or with offerings from Motorola. Much much cheaper, and by a lot of circumstantial evidence, perform better.
-
Who needs a repeater when you have 500,000 watts?
axorlov replied to WRKS279's topic in General Discussion
Try this on UHF, and Canada will be just fine, but the colony on Mars will object. -
Motorola DTR and DLR series 900MHz FHSS digital radios
axorlov replied to n1das's topic in 900 MHz License-Free Radios (ISM)
I actually bought a pair of DLR1060 on ebay today. Going to compare performance with GMRS handhelds and mobiles. The usage mode is outdoors: camping, hikes, mountains, woods. It is not very clear to me how 900MHz at 1W with spread-spectrum and error correction would perform against ole wide-band FM at 4W (and at 40W). Of course, the moment I bought DLRs, the cheap chargers disappeared from ebay. But I'm not in rush, will wait for something below $30. So, what you, David, are saying, is that the older DTRs do not have this 4-digit ID, mentioned in DLR manual. And to make the old DTR work with new DLR is to program talk groups into DLR. The programming the 4-digit ID into old DTR will not work because there is no 4-digit ID. Right? Wrong? I order to introduce the older DTR into the network of DLRs I will need to delete the 4-digit ID in DLRs and program the talkgroups, is this correct? At this moment of time my interest is purely academical because I do not have old DTR, and DLRs are not here with me yet. -
What can I expect from hand-held? Will it work for Net system?
axorlov replied to WRKS279's topic in General Discussion
Get into your car and drive closer. -
What can I expect from hand-held? Will it work for Net system?
axorlov replied to WRKS279's topic in General Discussion
It might be that people do not want to talk to you. Ok, I'm saying it in a jesting way, but the matter is serious. GMRS is where people talk inside their established group. Not always, but mostly. Depending on your locality and the crowd on the local repeaters, if they are welcoming to others. So, let's start at the beginning. Your 805G is repeater-capable. Do you have correctly programmed it for the repeater access? I.e. your transmission frequency is 5MGz higher than your receiving frequency (Ch 15) and the tone is programmed correctly? If you programmed repeater correctly, you should be able to "kerchunk" it. It is frowned upon practice, and for a good reason (it is illegal to transmit without ID, and it's annoying as hell), but if you do it once/twice nobody will notice. Hopefully... It goes like this: press PTT for one second, and listen for a "repeater tail" - bit of static or roger beep. If you hear it - good, you are in. -
Another thought: if your property is centrally located, that is necessarily a best spot for a repeater (or even simplex). Other locations might provide better path to other sites.
-
300' high hills could be a problem. However, with the help of diffraction and reflection of radiowaves might be doable. And if you can put 50' mast, that would be better. Only practical experiment will tell for sure. The TK-8102 with it's wide-band capability is much better than anything from Midland. In a situation like yours every tiny bit helps, like better receiver on Kenwood and wide-band. It is also much cheaper to experiment with: below $100 vs $250
-
Motorola DTR and DLR series 900MHz FHSS digital radios
axorlov replied to n1das's topic in 900 MHz License-Free Radios (ISM)
Thanks, very helpful summary. -
I found manual for the DLR1020, looks like I understood everything right. Thanks for the help!
-
Thanks! That helps. So, the frequency hopset and talkgroup ID is similar to the tone squelch on analog FM, do I understand that correctly? And any DTR and DLR radio that programmed to the same hopset and talkgroup can talk to each other? And when I see something like "DLR1060 6-channel" it means that it is possible to program 6 talkgroups and chose between them? If the communications need is very simple: two or three radios that can talk to each other, without the need to talk to strangers on default talkgroups, then 2-channel should suffice. Do I read everything correctly?
-
Question to owners, out of curiosity, how do you program DTR? And DLR? Do you even program them? Or is there a feature when you "pair" them somehow? Or any DTR/DLR will work with any other?
-
Which commercial HT's are popular for use on GMRS?
axorlov replied to Lscott's topic in General Discussion
Must be before January. I'm now looking for a Kenwood handheld in decent condition on Ebay, and it's dry. The TK-3170 in working condition with a good battery now commands $125 and more. I blame recent events. The good inexpensive mobiles like 860, 880, 8180 are also disappeared. -
Newbies may also start with Maxwell equations (https://en.wikipedia.org/wiki/Maxwell%27s_equations). Learning is good, right? It's like a dancing lesson offered by Lord! Snark off: I still think that when somebody asks about "decent cheap SWR meter" the NanoVNA is a wrong answer. With all due respect to the NanoVNA and those who offered the advice.
-
Looks bad. Accident? Arson? Negligence?
-
NanoVNA is nothing less than miraculous piece of equipment, but it has drawbacks. The biggest: it is extremely unfriendly for newbies. The second: it can't measure power. And the third: screen sucks, or you must use PC, that is also may not be convenient. True, you can't find better tool for $50. But you must know how to use it.
-
Cool! Glad it worked.
-
Hahaha, lol!
-
Ok, I attempted to go Wine route with KPG-101D (I know, it's not the -49D, but they are from the same manufacturer and from the same time frame), spent some time with the dlls, copying from windows partition and other dances with the tambourine. Life is too short for shit like this. Just get Windows PC (secondhand for $100) or go VirtualBox or VMWare direction. apt-get --purge remove wine apt-get --purge autoremove I need a drink
-
I use FTDI cable from bluemax49s. We know him and we love him. 1. Go to Devce Manager, Expand "Ports (COM & LPT)". You should see "USB Serial Port (COM3)". COM3 is on my laptop, yours could be different. Remember the port number. 2. The setting of the port do not seem to matter, apparently KPG-101D changes them as it sees fit, however: Right click -> Properties -> Port Settings. I have the following: BPS: 115200, Data bits: 8, Parity: None, Stop bits: 1, Flow control: None. 3. Start KPG-101D, go to Menu -> Setup -> COM Port. Make sure that the correct COM port is selected from #1. In my case it's COM3. 4. Plug cable into TK-3170, turn the radio on normally. 5. Menu -> Model -> Product Information. Choose the correct model. That step seems to be optional. I do not see any difference between my TK-3170 and TK-3173. If you have 16-key model, you may need that. 6. Menu -> Program -> Read Data From Transceiver, hit "Read". Tada!! Or not.
-
Let's clarify some things. Wine does not run on top of DOSBox. Are we talking about this DOSBox: www.dosbox.com? Wine has nothing to do with it. Wine provides you (tries hard and mostly fails, but A+ for the effort) Win32 API and environment (registry, user32.dll and the the whole kitchen sink) to fool Windows applications into thinking they are running under Windows. They are still x86 (or x64) applications that need Intel (or compatible) CPU. DOSBox is an emulator of DOS on x86 PC, that can run on different hardware, like ARM, or PowerPC Mac or whatever. They are similar as much as elephant and elephant slug are similar. So, sure, you can run DOSBox, but you will need DOS application. Windows application will not work in DOSBox. Of course, people here will quickly point to Windows 95 (remember that?) running under DOSBox on the ARM-based phone, but KPG-49D is not going to run on Windows 95. Wine and serial ports: https://wiki.winehq.org/index.php?title=Wine_User%27s_Guide&oldid=2519#Serial_and_Parallel_Ports To have permissions is a key. The user account must have read/write permissions to /dev/ttyUSB#. On some systems you can add your account to dialout group, as was pointed in this thread. So, the plan of attack should be like this: 1. Find out the name of your USB-to-serial adapter. It's very likely going to be /dev/ttyUSB0. You can check dmesg or you can watch what /dev/ttyXXX appears anew when you plug in the cable. 2. Find out what group your account needs to belong to have read/write permissions to said /dev/ttyUSB0. Add account to that group. Good chance it's going to be dialout group. 3. Identify what COM port number Wine uses to access this /dev/ttyUSB0. See the link to documentation above. 4. Run KPG-49D, set up the port, rate. See if you have communication with radio. 5. Most important! Post results here.
-
Midland mxt115 with browning base antenna
axorlov replied to Blackmar401's question in Technical Discussion
Bending too tight may cause the problem. I do not have specs handy, but for LMR-400 I'm quite sure the min bend radius is 5" or more. -
This Laird antenna does not need ground plane. Do I read correctly that it is now mounted at the height of 30 inches from the ground? Mount it high on a mast, the higher the better. 10-20-30', and do experiment again.